DataStore2 won't save value after rewarding player with points?

I'm trying to create a script that rewards the player 100 points for killing other players. The script works but since I'm using DataStore2 you're supposed to update their saved data instead of updating their leaderstats. (Or only the leaderstat will update but it won't be saved) I don't understand how to do this though because this is my first time trying to use DataStore2

Code:

local DataStore2 = require(game.ServerScriptService.StatsDataStore2:WaitForChild("MainModule"))
local Humanoid = script.Parent.Humanoid
function dead() 
local tag = Humanoid:findFirstChild("creator") 
    if tag ~= nil then 
        if tag ~= nil then 
local Leaderstats = tag.Value:findFirstChild("PlayerStats") 
        if Leaderstats ~= nil then 
        Leaderstats.Points.Value = Leaderstats.Points.Value + 100
    --[[local PointsStore = DataStore2("Points", tag)
        PointsStore:Increment(100) <-- My attempt at trying to update the value of their saved data didn't work  ]]
wait(0.1)
script:Destroy()
            end 
        end 
    end 
end 
Humanoid.Died:connect(dead) 

Extra Info: This script is placed in StarterCharacter (Not sure if that's relevant or not)